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valentinak56 [21]
3 years ago
12

Solve A = 1/2(b + c)h for c.​

Mathematics
1 answer:
otez555 [7]3 years ago
8 0

Answer:

2A/h - b =  c

Step-by-step explanation:

A = 1/2(b + c)h

Multiply each side by 2

2A = (b + c)h

Divide each side by h

2A/h = (b + c)h/h

2A/h = (b + c)

Subtract b from each side

2A/h -b = (b-b + c)

2A/h - b =  c

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The price of a cycle is reduced by 25 per cent. The new price is reduced by a further 20 per cent.Find the single reduction the
Evgen [1.6K]

Answer:

40%  . The single reduction together is 40%.

Step-by-step explanation:

Let the bicycle cost is   x before reduced price.

First 25% is reduced  and again 20% further reduced.

Let the single reduction is y% if the two reduction together are equal.

Solution,

Case .1

reduction cost=x\times 25%%

=x\times 25/100

=x/4

The cost of bicycle after reduction of 25% is

=x-x/4=3x/4

cost of reduction further reduction of 20%      =3x/4\times 20%

=3x\times 20/(4\times 100)

=3x/20

The new cost of bicycle is further reduction of 20% is

=3x/4-3x/20

=\left ( 15x-3x \right )/20

=12x/20=3x/5

Case.2

if single reduction is done new cost of cycle is equal

x-x\times y%=3x/5

x\left ( 1-y/100 \right )=3x/5

\left ( 100-y \right )/100=3/5

100-y=60

y=40%

single reduction of a cycle is 40%

8 0
3 years ago
Pls answer I really need help<br> Brainlist and thank you will be the reward thank you so much!!!
castortr0y [4]

Answer:

<h2>0.667 ✅</h2>

Step-by-step explanation:

This is best solved using a proportion.

The formula is soy/vinegar = soy/vinegar where one of these is a variable.

Here we have:

\frac{150}{100} = \frac{1}{x}

Now, we solve this by cross multiplying.

150x = 100

Dividing both sides by x, we get x = 2/3 or about 0.667.

Checking:

\frac{150}{100} = \frac{1}{0.667}

1.5 = 1.5 ✅

<h2>I'm always happy to help :)</h2>
4 0
4 years ago
Which graph represents the solution set of this inequality?
Levart [38]

Answer:

answer = C

Step-by-step explanation:

5 0
3 years ago
PLEASE HELP ASAP PLEASE I DON'T UNDERSTAND THIS!!!!!!!!!!!!!!
Vlada [557]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
4x(28-10+2) Please help it says the answer is 92, but I keep getting 80. If 92 is the correct answer, please explain
neonofarm [45]

Answer:

that's strange I got 80 too

Step-by-step explanation:

 even the internet says its 80

3 0
3 years ago
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